Question 1167567
971 tickets lose $5.  So, that's $4855 gained for the shelter.
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17 tickets win a NET of $15.  (The adoption is a $20 value, but you have to remember that the winners still paid $5 each for their tickets, so the net gain for each winner is only $15.)  Anyway...17 tickets win $15, so that's $255 "lost" for the shelter.
<pr>
One ticket wins a NET of $129.  (Same as above.  The prize is $134, but the person still paid $5 for their ticket.)  So, that's $129 "lost" for the shelter.
<pr>
The total gains are $4855 and the the total losses are $384.  That means the shelter netted $4471.
<pr>
Since there were 989 total tickets sold and the total netted was $4471, <b>the shelter should expect to earn $4.52 per ticket sold.</b>  ($4471 divided by 989 is $4.52.)